The looping of the template for the lagging strand enables a dimeric DNA polymerase III holoenzyme at the replication fork to synthesize both daughter strands. (Courtesy of A. Kornberg. From L. Stryer, Biochemistry, 4th ed.he 3â²âââ5â² exonuclease action of DNA polymerase III. Note that this exonuclease activity takes place at the 3â² end of the growing strand (and is therefore 3â²âââ5â²). The coordination of exonuclease activity with strand growth helps to explain why replication is in the 5â²âââ3â² direction.
McAllen is the twenty-first most populous city in Texas and the largest city in Hidalgo County, Texas. It is located at the southern tip of Texas in the Rio Grande Valley (not a geographical valley) and is part of the Southern United States.
KEENAN, TX. KEENAN, TEXAS. Keenan is on the Atchison, Topeka and Santa Fe Railway and Farm Road 2854, 10Â½ miles west of Conroe in western Montgomery County. It was established about 1906 on the Gulf, Colorado and Santa Fe line and named for W. S. Keenan, passenger agent of the railroad. The community was a shipping point for timber.